r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
r1 = signalfd(0xffffffffffffffff, &(0x7f0000000140), 0x8)
r2 = dup2(r0, r1)
connect$inet6(r2, &(0x7f0000000000)={0xa, 0x0, 0x0, @empty}, 0x1c)
setsockopt$sock_int(r2, 0x1, 0xf, &(0x7f00000000c0)=0x84000001, 0x4)
listen(r1, 0x0)